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GenWay/Taenia solium IgG (Cysticercosis)/GWB-EBD247/1x96 Assays
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4000-520-616
Description:
ProductName | TaeniasoliumIgGELISA. |
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#ofSamples | 1x96Assays. |
IntendedUse | TheTaeniasoliumIgG-ELISAisintendedforthequalitativedeterminationofIgGclassantibodiesagainstTaeniasoliuminhumanserumorplasma(citrate). |
Introduction | Taeniasoliumisatapewormof2-7minlengthwhichresidesinthesmallintestineofhumansbutalsootheranimalspecies(monkeys,hamsters).Thetapewormsproduceproglottids(lessthan1,000,andeachwith50,000eggs)whichmature,becomegravid,detachfromthetapeworm,andmigratetotheanusorarepassedinthestool.Theeggscontainedinthegravidproglottidsandpassedwiththefaecescansurviveformonthstoyearsintheenvironment.Afteringestionofasuitableintermediatehost(pigsandotheranimals,includinghumans)theeggsreleasetheoncosphere,invadetheintestinalwallandmigratetothestriatedmuscles,intothebrain,liverandothertissuesofthehostwheretheydevelopincysticerci.Inthehumanintestine,acysticercusdevelopsover2monthsintoanadulttapeworm,whichcansurviveforupto25years.TheimportantparasiticinfectioncausedbyTaeniasoliumiscysticercosiswhichmayinvolvetheeyeandthecentralnervoussystem.TheswinetapewormTaeniasoliumisworldwideindistribution.Prevalenceishigherinpoorercommunitieswherehumansliveinclosecontactwithpigsandeatundercookedpork,andisveryrareinMuslimcountries.ThemainsymptomofTaeniasis(onlymild)isoftenthepassage(passive)ofproglottids. ThemostimportantfeatureofTaeniasissoliumistheriskofdevelopmentofCysticercosis. Infectionmaybeidentifiedby
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Principlesoftheassay | ThequalitativeimmunoenzymaticdeterminationofIgG-classantibodiesagainstTaeniasoliumisbasedontheELISA(Enzyme-linkedImmunosorbentAssay)technique. MicrotiterstripwellsareprecoatedwithTaeniasoliumantigenstobindcorrespondingantibodiesofthespecimen.Afterwashingthewellstoremoveallunboundsamplematerialhorseradishperoxidase(HRP)labelledProteinAconjugateisadded.Thisconjugatebindstoantigen-antibodycomplexes.TheimmunecomplexformedbytheboundconjugateisvisualizedbyaddingTetramethylbenzidine(TMB)substratewhichgivesabluereactionproduct. TheintensityofthisproductisproportionaltotheamountofTaeniasolium-specificIgGantibodiesinthespecimen.Sulphuricacidisaddedtostopthereaction.Thisproducesayellowendpointcolour.Absorbanceat450nmisreadusinganELISAmicrowellplatereader. |
StorageandStABIlity | Thereagentsarestableuptotheexpirydatestatedonthelabelwhenstoredat2-8°C. |
LimitationsoftheTest | Bacterialcontaminationorrepeatedfreeze-thawcyclesofthespecimenmayaffecttheabsorbancevalues.Diagnosisofaninfectiousdiseaseshouldnotbeestablishedonthebasisofasingletestresult.Aprecisediagnosisshouldtakeintoconsiderationclinicalhistory,symptomatologyaswellasserologicaldata. Inimmunocompromisedpatientsandnewbornsserologicaldataonlyhaverestrictedvalue. CrossreactionoftheantigenswithantibodiesagainstEchinococcusandEntamoebaispossIBLe.IfEchinococcusorEntamoebainfectioncannotberuledoutinthedifferentialdiagnosis,apositivesampleshouldbeconfirmedbyanothermethod. |
References | FLISSER,A.ANDLARRALDE,C.,CYSTICERCOSIS.IMMUNODIAGNOSISOFPARASITICDISEASES,VOL.1,HELMINTHICDISEASES.ED.WALLSANDSCHANTZ.ACADEMICPRESS,1986.PP.109-140EVANS,C.ETAL.,CONTROVERSIESINTHEMANAGMENTOFCYSTICERCOSIS,EMERGINGINFECTIOUSDISEASES,VOL.3,NO.3,JULY-SEPTEMBER1997,PP.403-405LARRALDE,C.ETAL.,TELIABLESEROLOGYOFTANIASOLIUMCYSTICERCOSISWITHANTIGENSFROMCYSTVESICULARFLUID:ELISAANDHAEMAGGLUTINATIONTESTS.AMJTROPMEDHYG.,VOL.35#5,1986,PP.965-973.RHOADS,MANDMURREL,D.,TAENIASISANDCYSTICERCOSIS,LABORATORYDIAGNOSISOFINFECTIOUSDISEASES,PRINCIPLESANDPRACTICE,VOL.1,1988,PP.987-992.DELBRUTTO,O.ANDSOTELLO,J.,NEUROCYSTICERCOSIS:ANUPDATE,REVIEWSOFINFECTIOUSDISEASES,VOL.10,NO.6,NOVEMBER-DECEMBER1988,PP.1075-1087 |
AdditionalInformation:
Name | TaeniasoliumIgG(Cysticercosis) |
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RelatedProductNames | TaeniasoliumIgG–ELISA |
MolecularWeight | 0.5 |
Storage | Thereagentsarestableuptotheexpirydatestatedonthelabelwhenstoredat2...8°C. |
IntendedUse | ResearchUseOnly |